package JDBC;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.util.concurrent.Callable;

public class JDBCDemo2 {
    public static void main(String[] args) throws Exception{
       Class.forName("com.mysql.cj.jdbc.Driver");
        Connection conn = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        System.out.println("与数据库链接成功！");
        Statement statement=conn.createStatement();
        String sql ="INSERT INTO userinfo(username,password,nickname,age ) " +
        "VALUES('张三','123456','阿三',22 ) " ;

        int num = statement.executeUpdate(sql);
        System.out.println("插入了"+num+"条记录");
        //上面语句执行完，到这里要关闭连接，conn.close();就是针对关闭连接的。
        conn.close();








    }
}
